mirror of
https://github.com/Mercury-Language/mercury.git
synced 2026-04-21 20:33:55 +00:00
62da652a68
Estimated hours taken: 80 Add support for exception handling, in extras/exceptions. extras/exceptions/README: Describes the files in this directory. extras/exceptions/exception.m: Contains the exception handling interface and implementation. extras/exceptions/test_exceptions.m: extras/exceptions/test_exceptions.exp: extras/exceptions/test_uncaught_exception.m: extras/exceptions/test_uncaught_exception.exp: extras/exceptions/test_exceptions_func.m: extras/exceptions/test_exceptions_func.exp: Test cases. extras/exceptions/Mmakefile: The Mmakefile for building and running the test cases.
59 lines
1.7 KiB
Mathematica
59 lines
1.7 KiB
Mathematica
%---------------------------------------------------------------------------%
|
|
% Copyright (C) 1997-1998 The University of Melbourne.
|
|
% This file may only be copied under the terms of the GNU Library General
|
|
% Public License - see the file COPYING.LIB in the Mercury distribution.
|
|
%---------------------------------------------------------------------------%
|
|
|
|
% File: test_exceptions_func.m.
|
|
% Main author: fjh.
|
|
|
|
% Test cases for exception handling functions.
|
|
|
|
% XXX we should test nested exception handlers.
|
|
|
|
%-----------------------------------------------------------------------------%
|
|
|
|
:- module test_exceptions_func.
|
|
:- interface.
|
|
:- import_module io.
|
|
|
|
:- pred main(io__state::di, io__state::uo) is cc_multi.
|
|
|
|
:- implementation.
|
|
:- import_module std_util.
|
|
:- import_module exception.
|
|
|
|
main -->
|
|
{ try(det_throw, R1) },
|
|
print("det_throw: "), print_r(R1), nl,
|
|
{ try(det_succeed, R2) },
|
|
print("det_succeed: "), print_r(R2), nl,
|
|
|
|
{ try(semidet_throw, SemidetThrowResult) },
|
|
print("semidet_throw: "), print_r(SemidetThrowResult), nl,
|
|
{ try(semidet_succeed, SemidetSucceedResult) },
|
|
print("semidet_succeed: "), print_r(SemidetSucceedResult), nl,
|
|
{ try(semidet_fail, SemidetFailResult) },
|
|
print("semidet_fail: "), print_r(SemidetFailResult), nl.
|
|
|
|
:- pred print_r(exception_result(T)::in, io__state::di, io__state::uo) is det.
|
|
print_r(E) --> print(E).
|
|
|
|
:- pred det_throw(string::out) is det.
|
|
det_throw(throw("det_throw")).
|
|
|
|
:- pred semidet_throw(string::out) is semidet.
|
|
semidet_throw(throw("semidet_throw")).
|
|
|
|
|
|
:- pred det_succeed(string::out) is det.
|
|
det_succeed("det_succeed").
|
|
|
|
:- pred semidet_succeed(string::out) is semidet.
|
|
semidet_succeed("semidet_succeed").
|
|
|
|
|
|
:- pred semidet_fail(string::out) is semidet.
|
|
semidet_fail("semidet_fail") :- fail.
|
|
|